91654450797 has 64 divisors (see below), whose sum is σ = 163430973440. Its totient is φ = 44323200000.

The previous prime is 91654450781. The next prime is 91654450799. The reversal of 91654450797 is 79705445619.

It is a happy number.

It is not a de Polignac number, because 91654450797 - 2⁴ = 91654450781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91654450799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124204 + ... + 445797.

It is an arithmetic number, because the mean of its divisors is an integer number (2553608960).

Almost surely, 2^91654450797 is an apocalyptic number.

It is an amenable number.

91654450797 is a deficient number, since it is larger than the sum of its proper divisors (71776522643).

91654450797 is a wasteful number, since it uses less digits than its factorization.

91654450797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570074.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 91654450797 in words is "ninety-one billion, six hundred fifty-four million, four hundred fifty thousand, seven hundred ninety-seven".